Shirriff went on to become Jack Palance's first co-host on the original Ripley's Believe It or Not!, staying with the program from 1982 through 1983. And in 1984, she had a supporting role in the drama Covergirl, co-starring TNG guest actor Charles Dennis.

Having retired from acting in the mid-1980s, Shiriff – now Mrs. Catherine Forstmann – is currently a Realtor working in Beverly Hills, California.